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19348085 = 516012417
BaseRepresentation
bin100100111001…
…1101001110101
31100101222120202
41021303221311
514423114320
61530410245
7323312261
oct111635165
940358522
1019348085
11aa15559
126590985
134015793
1427d90a1
151a72b75
hex1273a75

19348085 has 8 divisors (see below), whose sum is σ = 23241816. Its totient is φ = 15462400.

The previous prime is 19348081. The next prime is 19348111. The reversal of 19348085 is 58084391.

It can be written as a sum of positive squares in 4 ways, for example, as 13712209 + 5635876 = 3703^2 + 2374^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19348085 - 22 = 19348081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19348081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6797 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (2905227).

Almost surely, 219348085 is an apocalyptic number.

It is an amenable number.

19348085 is a deficient number, since it is larger than the sum of its proper divisors (3893731).

19348085 is a wasteful number, since it uses less digits than its factorization.

19348085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 19348085 is about 4398.6458143388. The cubic root of 19348085 is about 268.4598411573.

The spelling of 19348085 in words is "nineteen million, three hundred forty-eight thousand, eighty-five".

Divisors: 1 5 1601 2417 8005 12085 3869617 19348085